Small - scale farmers often grow a range of non-Cavendish
banana varieties for local consumption that can tolerate or resist TR4.
This is where 82 percent of the world's Cavandish bananas - by far the world's most
popular banana variety - are grown, with Ecuador alone supplying over a third of the billion - dollar global export market.
Plant scientists, including us, are working out the genetics of
wild banana varieties and banana pathogens as we try to prevent a Cavendish crash.
Along with the beautifully ripe papaya, which reminded us of our last trip to Cancun, I found nopales (cactus),
exotic banana varieties and the best horchata I've had in a long time.
The Cavendish banana, the most commonly
grown banana variety worldwide, is especially susceptible to the black Sigatoka fungus.
A strain of Foc previously wiped out the Gros Michel cultivar, which was the main
exported banana variety from the nineteenth century until the 1950s.
Different from a bell or
banana variety, this 6» to 7» is fleshy with a smooth texture.
The banana variety Yangambi km5 produces toxic substances that kill the nematode Radopholus similis, a roundworm that infects the root tissue of banana plants — to the frustration of farmers worldwide.
The researchers compared the two
banana varieties and studied their defense responses to Radopholus similis.
In
that banana variety, the nematodes win the fight.»
The researchers studied two
banana varieties to find out why they make very different amounts of carotenoids.